From: Slavomir Kaslev <kaslevs@vmware.com>
To: linux-trace-devel@vger.kernel.org
Cc: rostedt@goodmis.org, slavomir.kaslev@gmail.com,
tstoyanov@vmware.com, ykaradzhov@vmware.com
Subject: [RFC PATCH v5 00/11] Add VM kernel tracing over vsockets and FIFOs
Date: Mon, 4 Feb 2019 08:58:37 +0200 [thread overview]
Message-ID: <20190204065848.8248-1-kaslevs@vmware.com> (raw)
This patchset adds support for tracing guest kernels to trace-cmd.
Changes in v5:
- add FIFOs transport for tracing data
- fixed a bug in tracecmd_msg_wait_close
Changes in v4:
- detect and use splice(2) on vsock sockets if possible
- switch port numbers to unsigned int
- trace-cmd record --date flag is now set for all guests if provided by the user
- removed grow_cap and exponential buffer size growth
Changes in v3:
- addressed Steven's feedback
- detect and disable guest tracing if <linux/vm_sockets.h> is not available
- the --date flag is now treated as global for all guest instances
- fixed a bug that caused --date to be ignored for host tracing data when tracing guests
Changes in v2:
- rebased on top of protocol V3
- fixed system clock timestamps with the --date flag
Slavomir Kaslev (10):
trace-cmd: Add tracecmd_create_recorder_virt function
trace-cmd: Add TRACE_REQ and TRACE_RESP messages
trace-cmd: Add buffer instance flags for tracing in guest and agent
context
trace-cmd: Add VM kernel tracing over vsockets transport
trace-cmd: Use splice(2) for vsockets if available
trace-cmd: Add `trace-cmd setup-guest` command
trace-cmd: Try to autodetect number of guest CPUs in setup-guest if
not specified
trace-cmd: Make setup-guest auto attach FIFOs to the guest VM config
trace-cmd: Set both input and output to non-blocking when recording is
stopped
trace-cmd: Add VM tracing over FIFOs transport
Steven Rostedt (VMware) (1):
trace-cmd: Detect if vsockets are available
Makefile | 7 +
include/trace-cmd/trace-cmd.h | 17 +-
lib/trace-cmd/trace-recorder.c | 69 ++-
tracecmd/Makefile | 7 +-
tracecmd/include/trace-local.h | 26 ++
tracecmd/trace-agent.c | 257 +++++++++++
tracecmd/trace-cmd.c | 4 +
tracecmd/trace-msg.c | 222 +++++++++-
tracecmd/trace-record.c | 759 +++++++++++++++++++++++++++++++--
tracecmd/trace-setup-guest.c | 243 +++++++++++
tracecmd/trace-usage.c | 21 +-
11 files changed, 1557 insertions(+), 75 deletions(-)
create mode 100644 tracecmd/trace-agent.c
create mode 100644 tracecmd/trace-setup-guest.c
--
2.19.1
next reply other threads:[~2019-02-04 6:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 6:58 Slavomir Kaslev [this message]
2019-02-04 6:58 ` [RFC PATCH v5 01/11] trace-cmd: Detect if vsockets are available Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 02/11] trace-cmd: Add tracecmd_create_recorder_virt function Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 03/11] trace-cmd: Add TRACE_REQ and TRACE_RESP messages Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 04/11] trace-cmd: Add buffer instance flags for tracing in guest and agent context Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 05/11] trace-cmd: Add VM kernel tracing over vsockets transport Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 06/11] trace-cmd: Use splice(2) for vsockets if available Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 07/11] trace-cmd: Add `trace-cmd setup-guest` command Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 08/11] trace-cmd: Try to autodetect number of guest CPUs in setup-guest if not specified Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 09/11] trace-cmd: Make setup-guest auto attach FIFOs to the guest VM config Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 10/11] trace-cmd: Set both input and output to non-blocking when recording is stopped Slavomir Kaslev
2019-02-04 6:58 ` [RFC PATCH v5 11/11] trace-cmd: Add VM tracing over FIFOs transport Slavomir Kaslev
2019-02-08 21:03 ` [RFC PATCH v5 00/11] Add VM kernel tracing over vsockets and FIFOs Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190204065848.8248-1-kaslevs@vmware.com \
--to=kaslevs@vmware.com \
--cc=linux-trace-devel@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=slavomir.kaslev@gmail.com \
--cc=tstoyanov@vmware.com \
--cc=ykaradzhov@vmware.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).